had an encounter once in Savannah...Cold rushes of air up my shorts walking down the street when it was 104 and humid as hell out... So cold I got goosebumps, asked mrs OTG if she felt it, she was right next to me and nada. We looked around for vents out of buildings, etc...nothing.
We went on a ghost tour later that night and was told ghosts do that kinda crap...
Freaked my shlt